Rcpp, RcppArmadillo and OS X Mavericks "-lgfortran" and "-lquadmath" error Editor’s Note 07/26/2017: This post provides an overview of why the gfortran error is occurring along with solutions to fix the macOS R versions: R 3.0.0 - 3.3.* Uninstall gfortran 4.8.2 binary >= R 3.4.* Intro Over the past weekend, I’ve been working on translating R code into Rcpp, a plugin C++ for R, to increase the spee